Preheat oven to 160c.Combine flour, sugar, rolled oats and coconut in a bowl. Melt butter and golden syrup in saucepan over medium heat. Combine boiling water with bicarbonate of soda. Add to the butter mixture and mix well. Stir into the dry ingredients until combined.Roll tsp of mixture into balls and place onto greased trays, allowing room as biscuits will spread.Bake for 10 mins, or until light golden brown. Cool on trays.